Papers of J.H. Steward Ltd, opticians and scientific instrument makers

This archive was acquired in two parts. Sections 1-9 comprise ms. material re various instruments, 1893-1939; catalogues and trade literature of J H Steward Ltd and other like companies; instructions for, and descriptions of, Steward's instruments; correspondence; patents; drawings and photographs. Sections 10-12 comprise manuscript notebooks, instructions for instruments and catalogues.